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WP4JSI

Available2x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderMALDONADO, EDUARDO

License ClassNovice

Min. Class RequiredTechnician

LocationBAYAMON, PR

Grant DateDec 24, 1990

Expiration DateDec 24, 2000

Cancellation DateDec 25, 2002

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WP4JSI

Available2x3District 4

Competitive callsign — 1 application filed with the FCC.

License HolderMALDONADO, EDUARDO

License ClassNovice

Min. Class RequiredTechnician

LocationBAYAMON, PR

Grant DateDec 24, 1990

Expiration DateDec 24, 2000

Cancellation DateDec 25, 2002

Available for ApplicationsDec 25, 2002

WP4JSI is a highly sought-after 2x3 format amateur radio callsign. The license is currently held by MALDONADO, EDUARDO in BAYAMON, PR. This callsign has attracted significant interest in the amateur radio community, with 1 vanity application filed with the FCC. The most recent was submitted by RODRIGUEZ, JAEL on Apr 6, 2026. WP4JSI has 1 recorded FCC license history event.

CW & Voice Analysis

Morse Code

.-- .--. ....- .--- ... ..

CW Weight: 37 units(Moderate)

Voice Phonetics

Whiskey Papa Four Juliet Sierra India

Readability: 6/10(Good readability)

This callsign is available now

Requires Technician license or higher to apply for this callsign format (2x3).

License History

License ExpiredDec 25, 2002

Vanity Application Activity

Competing applications filed with the FCC for this callsign.

RODRIGUEZ, JAELFiled Apr 6, 2026
DismissedFCC ↗

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FCC data as of Jul 25, 2026 — may be delayed

WP4JSI FCC Vanity Status: 1 Competing Application & History